A laser positioning device for CT-guided percutaneous trans-laminar pulmonary puncture

Abstract

The present invention discloses a laser positioning device for CT-guided percutaneous cross-plane puncture of the lung, and relates to the technical field of medical devices. The laser positioning device for CT-guided percutaneous cross-plane puncture of the present invention comprises a bracket, an angle positioning guide arm and a cross-plane positioning arm, and the upper end of the bracket is movably installed with an angle positioning guide arm and a cross-plane positioning arm at a space interval of 90°; the movably rotating angle positioning guide arm and the cross-plane positioning arm and the installed linear laser transmitter and angle meter assist the efficient operation and precise positioning of CT-guided percutaneous cross-plane puncture of the lung.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a laser positioning device for percutaneous cross-plane pulmonary puncture under CT guidance. Background Art

[0002] At present, CT-guided percutaneous lung puncture technology is a common technical means for the diagnosis and treatment of difficult or complex lung lesions by respiratory and critical care medicine and imaging doctors. CT-guided percutaneous lung puncture technology has clinical application value. Accurate puncture is the basis for puncture biopsy of lung space-occupying lesions and various non-vascular interventional treatments. The key to successful treatment is to clearly display the diffusion of iodized oil, particle distribution, ablation damage range, tumor inactivation and other treatment conditions under CT scanning. Using CT as a guide, it is not affected by gas and bones, has no application blind spots, has high spatial resolution and density resolution, and can perform three-dimensional reconstruction when necessary. It can display the size, location, number of lesions and their adjacent relationship with surrounding structures and organs, providing sufficient information for improving puncture accuracy and precise treatment. It can also immediately evaluate the diffusion of iodized oil, particle distribution, ablation damage range, tumor inactivation and other treatment conditions and the presence or absence of complications. CT machines are currently widely used and the scanning cost is low. Therefore, CT-guided percutaneous lung puncture technology has the advantages of accurate positioning, easy to master puncture methods, and few complications. The lesion treatment status can be observed at any time during the operation, and it has very practical clinical application value for the living pathological diagnosis and non-vascular interventional treatment of chest lesions.

[0003] Due to complications, this technology is currently mainly used in tertiary hospitals and requires operators to have certain operating experience. Currently, there are many tools or means used to guide the puncture path at the same level, but there are relatively few tools for cross-level puncture. In clinical work, cross-level puncture is often required due to anatomical location. In order to make percutaneous cross-level puncture more accurate and simple, we designed a laser positioning device suitable for CT-guided percutaneous cross-level pulmonary puncture to facilitate clinical physicians. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention provides a laser positioning device for CT-guided percutaneous cross-layer pulmonary puncture, which assists in the efficient operation and precise positioning of CT-guided percutaneous cross-layer pulmonary puncture.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A laser positioning device for percutaneous lung cross-plane puncture under CT guidance, comprising a bracket, an angle positioning guide arm and a cross-plane positioning arm, wherein the angle positioning guide arm and the cross-plane positioning arm are movably mounted at 90° intervals on the upper end of the bracket;

[0007] The angle positioning guide arm and the cross-layer positioning arm have the same structure, including a connecting seat and a movable rod. The connecting seat can slide longitudinally at the upper end of the bracket and be locked at any position. The connecting seat is connected to the movable rod through a controllable rotating seat. The movable rod is a telescopic rod. A linear laser transmitter and an angle meter are installed at the middle and rear ends of the movable rod. A calculator device is also installed on the movable rod of the cross-layer positioning arm.

[0008] Furthermore, the bracket includes a base and a vertical rod, the vertical rod is a telescopic rod, the cross-section of the upper part of the vertical rod is square, and T-shaped sliding grooves are longitudinally opened on two adjacent surfaces to cooperate and fix with the connecting seat.

[0009] Furthermore, the connecting seat includes a slider, a threaded rod and a locking nut. The slider is installed in the limiting groove of the T-shaped slide slot, the threaded rod extends out of the T-shaped slide slot and is locked on the bracket by abutting against the surface of the vertical pole through a locking nut that can move on the threaded rod; a controllable rotating seat is installed at the rear end of the threaded rod.

[0010] Furthermore, the controllable rotating seat includes a rotating disk which is rotatably fitted and respectively connected to the threaded rod and the movable rod, and an adjusting knob is installed at the center of the rotating disk to control rotation and locking;

[0011] The adjustable rotation direction of the controllable rotating seat is horizontal or vertical.

[0012] Furthermore, the inclinometer is mounted on a movable rod, and a rotatable line laser transmitter is mounted on the inclinometer;

[0013] The data acquisition module of the inclinometer is connected to the computer device to realize data transmission, and the acquired data is transmitted to the computer device. The computer device is provided with a touch display screen, a calculation processor and an interaction module.

[0014] Furthermore, the base of the bracket is a chassis with guide wheels or a tripod structure, and the vertical rod on the base is provided with a telescopic adjustment knob.

[0015] Beneficial effects of the present invention:

[0016] The laser positioning device for CT-guided percutaneous lung cross-plane puncture of the present invention comprises a bracket, an angle positioning guide arm and a cross-plane positioning arm, wherein the angle positioning guide arm and the cross-plane positioning arm are movably installed at a space interval of 90° on the upper end of the bracket; the CT-guided percutaneous lung cross-plane puncture is assisted in efficient operation and precise positioning by the movably rotating angle positioning guide arm and the cross-plane positioning arm and the installed linear laser transmitter and angle meter;

[0017] The angle positioning guide arm and the cross-plane positioning arm of the present invention can realize the adjustment and positioning of the angle positioning guide arm and the cross-plane positioning arm at any position in the space they belong to through the structural design of the connecting seat, the movable rod and the controllable rotating seat. At the same time, through the design of the line laser transmitter and the angle meter, the relative parameters of the adjusted angle positioning guide arm and the cross-plane positioning arm can be obtained. Under the guidance of CT, percutaneous lung puncture at the same level and across levels can be performed, and accurate and efficient operation can be achieved through reading and selecting the puncture parameters.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 This is a schematic structural diagram of a laser positioning device for CT-guided percutaneous pulmonary cross-plane puncture according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the bracket described in an embodiment of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the angle positioning guide arm according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection between the angle positioning guide arm and the cross-plane positioning arm and the bracket according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the installation of the line laser transmitter and the inclinometer according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the cross-layer positioning arm according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the controllable rotating seat according to an embodiment of the present invention;

[0027] Figure 8 The principle of use of the laser positioning device for CT-guided percutaneous cross-plane pulmonary puncture according to the embodiment of the present invention Figure 1 ;

[0028] Fig. 9 The principle of use of the laser positioning device for CT-guided percutaneous cross-plane pulmonary puncture according to the embodiment of the present invention Figure 2 ;

[0029] The reference numerals of the components in the accompanying drawings are as follows:

[0030] 1- bracket, 101- base, 102- vertical pole, 103- telescopic adjustment knob, 104- T-type slide, 2- angle positioning guide arm, 3- cross-layer positioning arm, 4- connecting seat, 401- slider, 402- threaded rod, 403- locking nut, 5- movable rod, 6- controllable rotating seat, 601- turntable, 602- adjustment knob, 7- line laser transmitter, 8- angle meter, 9- calculator device. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-7 Shown

[0033] A laser positioning device for percutaneous lung cross-plane puncture under CT guidance, comprising a bracket 1, an angle positioning guide arm 2 and a cross-plane positioning arm 3, wherein the angle positioning guide arm 2 and the cross-plane positioning arm 3 are movably mounted at a 90° interval on the upper end of the bracket 1;

[0034] The angle positioning guide arm 2 and the cross-layer positioning arm 3 have the same structure, including a connecting seat 4 and a movable rod 5. The connecting seat 4 can slide longitudinally at the upper end of the bracket 1 and be locked at any position. The connecting seat 4 is connected to the movable rod 5 through a controllable rotating seat 6. The movable rod 5 is a telescopic rod. A linear laser transmitter 7 and an angle meter 8 are installed at the middle and rear ends of the movable rod 5. A calculator device 9 is also installed on the movable rod 5 of the cross-layer positioning arm 3.

[0035] The bracket 1 includes a base 101 and a vertical rod 102 . The vertical rod 102 is a telescopic rod. The cross section of the upper portion of the vertical rod 102 is square, and T-shaped sliding grooves 104 are longitudinally provided on two adjacent surfaces to cooperate with the connecting seat 4 for fixing.

[0036] The connecting seat 4 includes a slider 401, a threaded rod 402 and a locking nut 403. The slider 401 is installed in the limiting groove of the T-shaped slide groove 104. The threaded rod 402 extends out of the T-shaped slide groove 104 and is locked on the bracket 1 by abutting against the surface of the vertical rod 102 through a locking nut 403 that can move on the threaded rod 402; a controllable rotating seat 6 is installed at the rear end of the threaded rod 402.

[0037] The controllable rotating seat 6 comprises a rotating disc 601 which is rotatably fitted and respectively connected to the threaded rod 402 and the movable rod 5, and an adjusting knob 602 is installed at the center of the rotating disc 601 to control rotation and locking;

[0038] The adjustable rotation direction of the controllable rotating seat 6 is horizontal or vertical.

[0039] The inclinometer 8 is mounted on the movable rod 5, and a rotatable line laser transmitter 7 is mounted on the inclinometer 8;

[0040] The data acquisition module of the inclinometer 8 is connected to the calculator device 9 to realize data transmission, and transmits the acquired data to the calculator device 9. The calculator device 9 has a touch display screen, a calculation processor and an interactive module.

[0041] The base 101 of the bracket 1 is a chassis with guide wheels or a tripod structure, and the vertical rod on the base 101 is provided with a telescopic adjustment knob 103 .

[0042] The technical solution of the present invention is described below in conjunction with specific embodiments:

[0043] Example 1

[0044] In this embodiment, a laser positioning device for CT-guided percutaneous lung cross-plane puncture comprises a bracket, an angle positioning guide arm and a cross-plane positioning arm. The angle positioning guide arm and the cross-plane positioning arm are movably installed at a space interval of 90° on the upper end of the bracket. The angle positioning guide arm and the cross-plane positioning arm have the same structure, including a connecting seat and a movable rod. The connecting seat can slide longitudinally on the upper end of the bracket and lock at any position. The connecting seat is connected to the movable rod through a controllable rotating seat. The movable rod is a telescopic rod. A linear laser transmitter and an angle meter are installed at the middle and rear ends of the movable rod. A calculator device is also installed on the movable rod of the cross-plane positioning arm.

[0045] The active and rotating angle positioning guide arm and cross-plane positioning arm as well as the installed linear laser transmitter and angle meter assist the efficient operation and precise positioning of percutaneous cross-plane lung puncture under CT guidance;

[0046] Specific operations such as Figure 8 As shown, the cross-plane puncture positioning arm: when the length of the B line of the CT scan layer thickness is known, the length of the A line can be displayed on the CT, and the position from the puncture point on the previous plane to the target, that is, the length of the C line, can be calculated according to the Pythagorean theorem; according to the formula: sina=A / C, the angle a is calculated, from which the needle insertion length and angle from the previous plane or the next plane can be known.

[0047] That is, the data read by CT is combined with the data of the angle meter and calculated by a calculator device to obtain the needle insertion length and angle of the previous or next layer and then perform the operation.

[0048] Example 2

[0049] In this embodiment, a laser positioning device for CT-guided percutaneous lung cross-plane puncture comprises a bracket, an angle positioning guide arm and a cross-plane positioning arm. The angle positioning guide arm and the cross-plane positioning arm are movably installed at a space interval of 90° on the upper end of the bracket. The angle positioning guide arm and the cross-plane positioning arm have the same structure, including a connecting seat and a movable rod. The connecting seat can slide longitudinally on the upper end of the bracket and lock at any position. The connecting seat is connected to the movable rod through a controllable rotating seat. The movable rod is a telescopic rod. A linear laser transmitter and an angle meter are installed at the middle and rear ends of the movable rod. A calculator device is also installed on the movable rod of the cross-plane positioning arm.

[0050] The active and rotating angle positioning guide arm and cross-plane positioning arm as well as the installed linear laser transmitter and angle meter assist the efficient operation and precise positioning of percutaneous cross-plane lung puncture under CT guidance;

[0051] like Fig. 9 As shown, angle positioning guide arm: same-layer puncture uses the laser of the angle positioning guide arm to form the guide line A and angle a.

[0052] In the above-mentioned embodiments 1-3, the angle positioning guide arm and the cross-layer positioning arm of the present invention can realize the adjustment and positioning of the angle positioning guide arm and the cross-layer positioning arm at any position in the space to which they belong through the structural design of the connecting seat, the movable rod and the controllable rotating seat, that is, the connecting seat includes a slider, a threaded rod and a locking nut, and during operation, the spatial position of the rear end can be adjusted by axial rotation, the movable rod can adjust the plane relative position of the angle positioning guide arm and the cross-layer positioning arm, and the design of the controllable rotating seat can adjust the position in another spatial direction, that is, through the three structural designs of the connecting seat, the movable rod and the controllable rotating seat, the working parts of the rear of the angle positioning guide arm and the cross-layer positioning arm can be adjusted 360° in the entire space, and suitable parameters can be obtained;

[0053] A line laser transmitter and an inclinometer are installed at the middle and rear ends of the movable rod of the present invention; a calculator device is also installed on the movable rod of the cross-layer positioning arm. For angle calculation, in the technical solution of the present invention, parameter data obtained by the rotating line laser transmitter and inclinometer can be sent to a computer or a wirelessly connected calculation module to realize angle calculation and provide a path.

[0054] At the same time, through the design of the line laser transmitter and the angle meter, the relative parameters of the adjusted angle positioning guide arm and the cross-plane positioning arm can be obtained, and percutaneous lung same-plane and cross-plane puncture can be performed under the guidance of CT. By reading and selecting the puncture parameters, accurate and efficient operation can be achieved.

[0055] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser positioning device for transcutaneous lung puncture under CT guidance, characterized in that: It comprises a bracket, an angle positioning guide arm and a cross-layer positioning arm, and the angle positioning guide arm and the cross-layer positioning arm are movably installed at a 90° interval on the upper end of the bracket; The angle positioning guide arm and the cross-layer positioning arm have the same structure, including a connection seat and a movable rod. The connection seat can slide longitudinally at the upper end of the bracket and be locked at any position. The connection seat is connected to the movable rod through a controllable rotating seat. The movable rod is a telescopic rod. A line laser transmitter and an angle meter are installed at the middle and rear ends of the movable rod. A calculator device is also installed on the movable rod of the cross-layer positioning arm. The bracket includes a base and a vertical rod, the vertical rod is a telescopic rod, the cross section of the upper part of the vertical rod is square, and T-shaped sliding grooves are longitudinally provided on two adjacent surfaces to cooperate with the connecting seat for fixing; The connecting seat comprises a slider, a threaded rod and a locking nut. The slider is installed in the limiting groove of the T-shaped slide. The threaded rod extends out of the T-shaped slide and abuts against the surface of the vertical rod through the locking nut that can move on the threaded rod to lock it on the bracket. A controllable rotating seat is installed at the rear end of the threaded rod. The controllable rotating seat comprises a rotating disk which is rotatably fitted and respectively connected to the threaded rod and the movable rod, and an adjusting knob is installed at the center of the rotating disk to control rotation and locking; The adjustable rotation direction of the controllable rotating seat is horizontal or vertical; The inclinometer is mounted on a movable rod, and a rotatable line laser transmitter is mounted on the inclinometer; The data acquisition module of the inclinometer is connected to the computer device to realize data transmission, and the acquired data is transmitted to the computer device. The computer device is provided with a touch display screen, a calculation processor and an interaction module.

2. The laser positioning device for CT-guided percutaneous trans-laminar pulmonary puncture according to claim 1, characterized in that: The base of the bracket is a chassis with guide wheels or a tripod structure, and the vertical rod on the base is provided with a telescopic adjustment knob.

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